dddd ddot ddpo ddps ddss ddts dod- dodd dodo dods dood doop door doos doot dopo dopp dopr dops dopt dord doro dorp dorr dors dort doso doss dost dotd doto dots dott dpdt dpos dpsd dpst dpts drod drop drot drrs drsp dsdp dsdr dsos dsps dspt dsrp dsrr dssp dsst dsto dsts dtdp dtor dtot dtss dttp oddd odds odoo odop odor odos odot odrp odso odts oooo ooos oops oord oort oost ootp oots opds opo- opor opos oppo opps opto opts ordo ords oro- oror oros orot orps orro orrs orso orto orts osoo osor osos osrd osro ossd osso ostr osts oto- otoo otor otos otpp otro otrs otso otto otts pdos pdpr pdrs pdsd pdss pod- podd podo pods pood poop poor poos poot pop- popo popp pops popt poro porr pors port poso poss post potd poto pots pott ppds ppod ppos pppd pppo pppp ppps ppss ppts pptt pro- prod proo prop pros prot prpd prps prrd prrs prsd prso prss prtp prtr psdp psdr psds psos pspp pspr psps psrd psrp psso psst psts ptop ptpd ptrd ptsd rdos rdso rodd rodo rods rood roop roor roos root ropo rops roro rort roso rosp ross rost roto rotr rots rott rpdp rpos rpps rptd rpts rrrr rrsp rsdd rsds rsos rspo rsps rstp rsts rtdt rtps rtss rttp rtts s-os sdds sdot sdpr sdps sdrs sdss sodd sodo sods sood soop soor soos soot sopd sopo sopp sops sord soro sorr sors sort soso soss sost soto sotp sots spdp spdr spdt spod spoo spop spor spos spot sppd spps sprd spro sprs spsd spso spsp spss spst spto sptr spts sros srps srpt srsd srsp srtp srtr ssdd ssdp ssop ssot sspo ssps sspt ssrs ssss sstd sstp ssts stds stod stoo stop stor stos stot stpd stpp stps strd stro strs stss sttd sttr tdor tdss todd todo tods todt tood toor toos toot top- topd topo topp tops topt tord toro torp torr tors tort toso toss tost totd toto totr tots tott tppd tppp tppr tprs tptp tptr trod troo trop tros trot trpp trps trsd trst trtr tsop tsos tspo tsps tspt tssr tsst tsts ttop ttss tttt